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Write contributing (important) resonance structures for each of the following compounds and predict their relative C=O vibrational frequencies based on the importance of the contributing resonance structures. List in them order from highest to lowest frequency.
a.) Cyclohexanoneb.) 2-cyclohexenonec.) cyclohexanecarbaldehyde
If we add a solid aluminum cylinder to a graduated cylinder containing 19.2 mL of water, and the water level in the cylinder rises to 24.7 mL, what is the mass of the aluminum cylinder?
A 782 mL gas sample at STP is compressed to a volume of 131 mL, and the temperature is increased to 22?C. What is the new pressure of the gas in Pa?Answer in units of Pa.
If desalinated water costs 2250 per acre-foot, how much does desalinated water cost per liter?
Solid lithium hydroxide is used in space vehicles to remove exhaled carbon dioxide. The products are solid lithium carbonate and liquid water
If a 210 mg piece of gold (density =19.32 g/cm^3 ) is hammered into a sheet measuring 2.5 x 1.0 ft , what is the average thickness of the sheet in meters?
Why are polychlorinated biphenyls (PCB's) importance to an EH&S or FS professional who encounters them when come to an incident where they are present?
How many grams of hydrogen are necessary to react completely with 50.0 g of nitrogen in the following reaction: N2+3H2 = 2NH3 ?
Draw the expected titration curve for the titration of methylamine (a weak base) with hydrochloric acid? What would be the nature of the salt produced at equivalence point of this titration?
What is the molarity of each ion in a solution prepared by dissolving 0.550 g of Na2SO4, 1.192 g of Na3PO4, and 0.228 g of Li2SO4 in water and diluting to a volume of 100.00mL?
what happens when acetate ion reacts with mercuric chcloride? explain with reactions?
Calculate the mass of propylene glycol ({rm{C}}_3 {rm{H}}_8 {rm{O}}_2 ) that must be added to 0.340 kg of water to reduce the vapor pressure by 2.86 torr at 40 ^circ ,{rm C} (P_{{rm H}_2{rm O}} at 40 ^circ,{rm C} = 55.3;{rm torr}).
Assuming that the reaction SO2(g) + H2O(l) --> H2SO3(l)is quantitative, how much sulfurous acid is formed when 100.0 g of sulfur dioxideare mixed with 60.0 g of water?
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